src-test2/lib/libpthread/thread/thr_join.c, branch release/5.2.0_cvs

This commit was manufactured by cvs2svn to create tag

2004-01-10T05:53:29Z

'RELENG_5_2_0_RELEASE'. This commit was manufactured to restore the state of the 5.2-RELEASE image. Releases prior to 5.3-RELEASE are omitting the secure/ and crypto/ subdirs.

Avoid accessing user provided parameters in critical region.

2003-07-07T04:28:23Z

Reviewed by: deischen

Change low-level locking a bit so that we can tell if

2003-05-24T02:29:25Z

a lock is being waitied on. Fix a races in join and cancellation. When trying to wait on a CV and the library is not yet threaded, make it threaded so that waiting actually works. When trying to nanosleep() and we're not threaded, just call the system call nanosleep instead of adding the thread to the wait queue. Clean up adding/removing new threads to the "all threads queue", assigning them unique ids, and tracking how many active threads there are. Do it all when the thread is added to the scheduling queue instead of making pthread_create() know how to do it. Fix a race where a thread could be marked for signal delivery but it could be exited before we actually add the signal to it. Other minor cleanups and bug fixes. Submitted by: davidxu Approved by: re@ (blanket for libpthread)

Add a method of yielding the current thread with the scheduler

2003-05-16T19:58:30Z

lock held (_thr_sched_switch_unlocked()) and use this to avoid dropping the scheduler lock and having the scheduler retake the same lock again. Add a better way of detecting if a low-level lock is in use. When switching out a thread due to blocking in the UTS, don't switch to the KSE's scheduler stack only to switch back to another thread. If possible switch to the new thread directly from the old thread and avoid the overhead of the extra context switch. Check for pending signals on a thread when entering the scheduler and add them to the threads signal frame. This includes some other minor signal fixes. Most of this was a joint effor between davidxu and myself. Reviewed by: davidxu Approved by: re@ (blanket for libpthread)

o Don't add a scope system thread's KSE to the list of available

2003-04-28T23:56:12Z

KSEs when it's thread exits; allow the GC handler to do that. o Make spinlock/spinlock critical regions. The following were submitted by davidxu o Alow thr_switch() to take a null mailbox argument. o Better protect cancellation checks. o Don't set KSE specific data when creating new KSEs; rely on the first upcall of the KSE to set it. o Add the ability to set the maximum concurrency level and do this automatically. We should have a way to enable/disable this with some sort of tunable because some applications may not want this to be the default. o Hold the scheduling lock across thread switch calls. o If scheduling of a thread fails, make sure to remove it from the list of active threads. o Better protect accesses to a joining threads when the target thread is exited and detached. o Remove some macro definitions that are now provided by . o Don't leave the library in threaded mode if creation of the initial KSE fails. o Wakeup idle KSEs when there are threads ready to run. o Maintain the number of threads active in the priority queue.

Sorry folks; I accidentally committed a patch from what I was working

2003-04-18T07:09:43Z

on a couple of days ago. This should be the most recent changes. Noticed by: davidxu

Revamp libpthread so that it has a chance of working in an SMP

2003-04-18T05:04:16Z

environment. This includes support for multiple KSEs and KSEGs. The ability to create more than 1 KSE via pthread_setconcurrency() is in the works as well as support for PTHREAD_SCOPE_SYSTEM threads. Those should come shortly. There are still some known issues which davidxu and I are working on, but it'll make it easier for us by committing what we have. This library now passes all of the ACE tests that libc_r passes with the exception of one. It also seems to work OK with KDE including konqueror, kwrite, etc. I haven't been able to get mozilla to run due to lack of java plugin, so I'd be interested to see how it works with that. Reviewed by: davidxu

Make the changes needed for libpthread to compile in its new home.

2002-09-16T08:45:36Z

The new libpthread will provide POSIX threading support using KSE. These files were previously repo-copied from src/lib/libc_r. Reviewed by: deischen Approved by: -arch

Fix pthread_join so that it works if the target thread exits while

2001-11-17T14:28:39Z

the joining thread is in a signal handler. Reported by: Loren James Rittle MFC after: 1 week

Fix a bug in canceling joining threads.

2001-08-16T06:31:32Z

Do not detach canceled threads. Reported by: Arno Klaassen Collaboration with: deischen